To my knowledge your best chance for parts is yahoo auctions jp. A trip in Egypt will be helpful (well and in some latin America countries also). Regarding Europe, its not that easy to find parts. France, Germany, Scandinavian countries, Belgium and UK (they had the wagon) are the countries that some cars were sold but parts appear very rarely.

Hello there mate! Welcome! Nice ride there! I really admire t. Very clean, it looks like a brand new car. Thanks for your post also. So far, this is a good classic car that I saw because I've been searching for reviews of Mazda cars since yesterday. Cheers!